9-letter words containing h, a, r, d, y
- hydrating — Present participle of hydrate.
- hydration — any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 ⋅10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 ⋅H 2 O, or H 2 SO 4 , it is strongly held as water of constitution.
- hydraulic — operated by, moved by, or employing water or other liquids in motion.
- hydraulus — a pipe organ of ancient Greece and Rome using water pressure to maintain the air supply.
- hydrazide — (chemistry) any compound derived from an oxoacid by replacing the hydroxide group with -NHNH2 or derived forms -NRNR2.
- hydrazine — Also called diamine. a colorless, oily, fuming liquid, N 2 H 4 , that is a weak base in solution and forms a large number of salts resembling ammonium salts: used chiefly as a reducing agent and a jet-propulsion fuel.
- hydrazoic — noting or pertaining to hydrazoic acid; triazoic.
- hydrazone — any of a class of compounds containing the group >C=NNH 2 .
- hydrocast — a process in which water is collected at various depths in a device with bottles clamped together, providing data on differing water characteristics.
- hydrolant — an urgent warning of navigational dangers in the Atlantic Ocean, issued by the U.S. Navy Hydrographic Office.
- hydrolase — an enzyme that catalyzes hydrolysis.
- hydronaut — a person trained to work in deep-sea vessels for research and rescue purposes.
- hydrosoma — hydrosome.
- hydrostat — an electrical device for detecting the presence of water, as from overflow or leakage.
- hydrovane — a vane on a seaplane conferring stability on water (a sponson) or facilitating take off (a hydrofoil)
- hydrozoan — any freshwater or marine coelenterate of the class Hydrozoa, including free-swimming or attached types, as the hydra, in which one developmental stage, either the polyp or medusa, is absent, and colonial types, as the Portuguese man-of-war, in which both medusa and polyp stages are present in a single colony.
- hyperacid — Highly acidic.
- hyperarid — being without moisture; extremely dry; parched: arid land; an arid climate.
- hypercard — A software package by Bill Atkinson for storage and retrieval of information on the Macintosh. It can handle images and is designed for browsing. The powerful customisable interactive user interface allows new applications to be easily constructed by manipulating objects on the screen, often without conventional programming, though the language HyperTalk can be used for more complex tasks.
- hypoderma — hypodermis.
- old harry — Older Use. the devil; Satan.
- pachyderm — any of the thick-skinned, nonruminant ungulates, as the elephant, hippopotamus, and rhinoceros.
- parchedly — in a parched manner
- qadariyah — the group who defended free will against the doctrine of predestination.
- qadiriyah — a Sufi fraternity founded by ʿAbd al-Qadir al-Jilani (1077–1166) in the 12th century.
- rehydrate — to restore moisture or fluid to (something dehydrated).
- semihardy — partially hardy; able to survive moderately low temperatures: semihardy plants.
- shadberry — the fruit of a shadbush.
- short-day — requiring a short photoperiod.
- subahdary — the position or office of subadar
- third way — The Third Way is used to refer to a set of political beliefs and principles that is neither extremely right-wing nor extremely left-wing.
- thursdays — on Thursdays; every Thursday.
- thyroidal — of or relating to the thyroid gland
- year head — a senior teacher who is responsible for a year in a secondary school